21007206

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^2$

素因数の和:194

約数の個数: 72

約数和(自身を含む): 53248104

約数和(自身を除く): 32240898

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 33, 34, 51, 66, 79, 99, 102, 153, 158, 187, 198, 237, 306, 374, 474, 561, 711, 869, 1122, 1343, 1422, 1683, 1738, 2607, 2686, 3366, 4029, 5214, 6241, 7821, 8058, 12087, 12482, 14773, 15642, 18723, 24174, 29546, 37446, 44319, 56169, 68651, 88638, 106097, 112338, 132957, 137302, 205953, 212194, 265914, 318291, 411906, 617859, 636582, 954873, 1167067, 1235718, 1909746, 2334134, 3501201, 7002402, 10503603, 21007206]

約数ペア:

[(1, 21007206), (2, 10503603), (3, 7002402), (6, 3501201), (9, 2334134), (11, 1909746), (17, 1235718), (18, 1167067), (22, 954873), (33, 636582), (34, 617859), (51, 411906), (66, 318291), (79, 265914), (99, 212194), (102, 205953), (153, 137302), (158, 132957), (187, 112338), (198, 106097), (237, 88638), (306, 68651), (374, 56169), (474, 44319), (561, 37446), (711, 29546), (869, 24174), (1122, 18723), (1343, 15642), (1422, 14773), (1683, 12482), (1738, 12087), (2607, 8058), (2686, 7821), (3366, 6241), (4029, 5214)]